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Why do dams have a very broad base?

Updated: 8/10/2023
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15y ago

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Dams must hold back water of a certain depth, determined by the height of the dam. The pressure exerted by this water on the dam is dependent in part by its depth, since the base of the dam must be able to hold pressures exerted by the weight of all the water above the base. Since the pressure is greater at the base, the dam is broader at the base.

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15y ago
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Q: Why do dams have a very broad base?
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